Rivers

Rivers and flooding in Montana

274 river gauges the National Weather Service watches in Montana. Each has its forecast, flood stages and impacts, and its crest history.

Open the live map with the river flood outlook

Flood outlook

Significant river flooding over the next five days, and each gauge’s chance of flooding over the next three months.

No significant river flooding is outlined in Montana in the next five days.

Most likely to flood, September to November

11 of the 77 gauges the River Forecast Centers forecast in Montana have a stated chance of flooding in this period.

Badger Creek

Battle Creek

Battle Creek (North-central MT)

Beaver Creek (MT)

Beaverhead River

Belt Creek

Big Hole River

Big Muddy Creek

Big Sandy Creek (MT)

Big Spring Creek (MT)

Bighorn River

Birch Creek (MT)

Bitterroot River

Blackfoot River

Blacktail Creek

Boulder Creek

Boulder River

Boulder River (Central MT)

Box Elder Creek

Canyon Creek

Clark Fork River

Clarks Fork of the Yellowstone

Clear Creek (North-central MT)

Cottonwood Creek

Cut Bank Creek

Dearborn River

East Boulder River

East Fork Poplar River

East Gallatin River

East Rosebud Creek

Fisher River

Flathead Lake

Flathead River

Flatwillow Creek

Frenchman Creek (MT)

Gallatin River

Grasshopper Creek

Grinnell Creek

Hanging Woman Creek

Hungry Horse Reservoir

Hyalite Creek

Jefferson River

Judith River

Kelly Creek

Kootenai River

Lake Creek (MT)

Lake Koocanusa

Little Beaver Creek

Little Bighorn River

Little Blackfoot River

Little Prickly Pear Creek

Lodge Creek

Lodge Grass Creek

Madison River

Marias River

Middle Fork Flathead River

Milk River

Mill Creek

Missouri River

Muddy Creek

Musselshell River

N Fork Musselshell River

near Van Norman

North Fork Flathead River

North Fork Milk River

North Fork Sun River

Otter Creek

Pass Creek

Peoples Creek

Poplar River

Powder River (WY-MT)

Prickly Pear Creek

Prospect Creek

Pryor Creek

Pumpkin Creek

Red Lodge Creek

Red Rock Creek

Red Rock River

Redwater River (MT)

Rock Creek

Rock Creek (NE MT)

Rock Creek (South Central MT)

Rosebud Creek

Ruby River

Saint Mary Canal

Saint Mary River

Shields River

Silver Bow Creek

Smith River (MT)

South Fork Flathead River

South Fork Jocko

South Fork Milk River

South Fork Musselshell

South Fork Sun River

St. Regis River

Stillwater River

Stillwater River (South Central MT)

Sun River

Swan River

Sweet Grass Creek

Swiftcurrent Creek

Tank Coulee

Tenmile Creek (MT)

Teton River

Thompson River

Tobacco River

Tongue River

Two Medicine River

Warm Springs Creek

West Fork Bitterroot River

West Fork Rock Creek

West Rosebud Creek

Whitefish River

Willow Creek

Willow Creek (Southwest MT)

Wise River

Yaak River

Yellowstone River

Sources

Gauges, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow from the U.S. Geological Survey.